Features/162 geosubmit

This adds a new geosubmit API to close out #162
Speed is in meters/sec and we can just hardcode a value here. Maybe 300 m/s might be a good upper threshold, so slightly below mach one or the speed of sound. This would still allow data from airplanes at cruise speeds.

The from_speed, SPEED_SCALE_FACTOR and SPEED_DECIMAL_PLACES can be removed.